sheets



2 Sheets-S'heet 1.

"Dp SHEETS.

(Model.)

Gate.

PatentedjO26, 1880.

N. PErERS. PHOTO-L T UNITED STATES PATENT OEEICE.

DANlEL SHEETS, OE UNION, OHIO.

GATE.

SPECIFICATION forming part ot Letters Patent No. 233,642, dated October26, 1880.

Application filed March 8, 1880.

To all whom it may concern:

Be it known that I, DANIEL SHEETS, of Union, in the county of Montgomeryand State of Ohio, have invented new and useful Improvements in Gates,of which the following is a specification.

My invention relates to a form of gate operated automatically by thepassing of a vehicle, and is adapted to be operated by hand; and itconsists of a double series of parallel bars jointed at the points ofintersection, so that the gate is extended or retracted at pleasure, andthis motion eifects the opening and closing of the same. Devicesconsisting of trip-irons and levers are used to operate the sameautomatically.

The accompanying drawings are made apart of this speciiication, and likeletters of reference marked thereon of the different tgures designatelike parts.

Figure l is a side elevation of the gate. Fig. 2is a top view of thebase and a section of the post centrally through the guides. Fig. 3 isan oblique view ofthe gate and its attachments.

A is a board forming the base, which corresponds to the earth and servesas a support to the superincumbent parts. To the base are secured theposts C and D in vertical position. The post O has mortises to receivethe ends of the gate when closed, as shown'by dotted lines. The centerof the post D is out out almost the entire length above the base,asindicatedby dotted lines. On the back of this post, and near the top,are guides N on both sides of the mortise, to support thefrictionrollers 0, which are attached to the bar R by means of a pinthat forms the axes of the rollers. The curved oscillating rod E issupported on standards at both ends, and at its center is supported onthe pin M, which passes through the post and forms the pivotal supportof the (Model.)

gate-bar L. The bent projection ot' the oscillating rod is connected tothe gate-bar by a link or equivalent device, as illustrated at Fig. 1.Near bot-h ends are attached arms to the oscillating rod, which areconnected to the crank end of the trip-irons by the stirrup or plates U.The trip-irons Gr have a double bend, the two parts having the relationot' right angles, and are secured to the base at a suitable distanceparallel to the gate. The trip-irons are identical with those in use inthe operation of automatic gates, and are operated by the passingvehicle.

The operation may be thus described: The wheel is driven against thatpart of the tripiron that depresses the rear part of the oscillatingrod. This carries the gate-bar to a nearlyvertical position, the effectbeing to close the parts of the gate upon itself within the post, andthus the Wayis fully open. When the vehicle has passed the gate thepartof the trip-iron is struck which elevates the rear eX- tension ofthe oscillatingrod, and thereby the gate is closed. 'A

rlLhe construction of the gate is not novel, and consists of a doubleseries of bars crossing each other, and so jointed as to admit ofextension and retraction. rlhe hand may be likewise used on the bar R toeffect the opening and closing of the gate.

What I claim as my invention, and desire to secure by Letters Patent, is

The gate B, having arms R and L, in coinbination with the guide N, postD, oscillating rod E, and trip-irons G. substantially as and for thepurposes set forth.

DANIEL SHEETS. Witnesses:

JNO. E. BUGHER, MARTIN E. SHEETS.

